diff --git a/clang/include/clang/Basic/SourceLocation.h b/clang/include/clang/Basic/SourceLocation.h
--- a/clang/include/clang/Basic/SourceLocation.h
+++ b/clang/include/clang/Basic/SourceLocation.h
@@ -26,6 +26,9 @@
 
 template <typename T> struct DenseMapInfo;
 
+class FoldingSetNodeID;
+template <typename T> struct FoldingSetTrait;
+
 } // namespace llvm
 
 namespace clang {
@@ -87,6 +90,7 @@
   friend class ASTReader;
   friend class ASTWriter;
   friend class SourceManager;
+  friend class llvm::FoldingSetTrait<SourceLocation>;
 
   unsigned ID = 0;
 
@@ -501,6 +505,10 @@
     }
   };
 
+  template <> struct FoldingSetTrait<clang::SourceLocation> {
+    static void Profile(const clang::SourceLocation &X, FoldingSetNodeID &ID);
+  };
+
   // Teach SmallPtrSet how to handle SourceLocation.
   template<>
   struct PointerLikeTypeTraits<clang::SourceLocation> {
diff --git a/clang/lib/Analysis/PathDiagnostic.cpp b/clang/lib/Analysis/PathDiagnostic.cpp
--- a/clang/lib/Analysis/PathDiagnostic.cpp
+++ b/clang/lib/Analysis/PathDiagnostic.cpp
@@ -1083,9 +1083,9 @@
 //===----------------------------------------------------------------------===//
 
 void PathDiagnosticLocation::Profile(llvm::FoldingSetNodeID &ID) const {
-  ID.AddInteger(Range.getBegin().getRawEncoding());
-  ID.AddInteger(Range.getEnd().getRawEncoding());
-  ID.AddInteger(Loc.getRawEncoding());
+  ID.Add(Range.getBegin());
+  ID.Add(Range.getEnd());
+  ID.Add(static_cast<const SourceLocation&>(Loc));
 }
 
 void PathDiagnosticPiece::Profile(llvm::FoldingSetNodeID &ID) const {
@@ -1095,8 +1095,8 @@
   ID.AddInteger((unsigned) getDisplayHint());
   ArrayRef<SourceRange> Ranges = getRanges();
   for (const auto &I : Ranges) {
-    ID.AddInteger(I.getBegin().getRawEncoding());
-    ID.AddInteger(I.getEnd().getRawEncoding());
+    ID.Add(I.getBegin());
+    ID.Add(I.getEnd());
   }
 }
 
diff --git a/clang/lib/Basic/SourceLocation.cpp b/clang/lib/Basic/SourceLocation.cpp
--- a/clang/lib/Basic/SourceLocation.cpp
+++ b/clang/lib/Basic/SourceLocation.cpp
@@ -15,6 +15,7 @@
 #include "clang/Basic/PrettyStackTrace.h"
 #include "clang/Basic/SourceManager.h"
 #include "llvm/ADT/DenseMapInfo.h"
+#include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/MemoryBuffer.h"
@@ -45,6 +46,11 @@
   return llvm::DenseMapInfo<unsigned>::getHashValue(ID);
 }
 
+void llvm::FoldingSetTrait<SourceLocation>::Profile(
+    const SourceLocation &X, llvm::FoldingSetNodeID &ID) {
+  ID.AddInteger(X.ID);
+}
+
 void SourceLocation::print(raw_ostream &OS, const SourceManager &SM)const{
   if (!isValid()) {
     OS << "<invalid loc>";
diff --git a/clang/lib/StaticAnalyzer/Core/BugReporter.cpp b/clang/lib/StaticAnalyzer/Core/BugReporter.cpp
--- a/clang/lib/StaticAnalyzer/Core/BugReporter.cpp
+++ b/clang/lib/StaticAnalyzer/Core/BugReporter.cpp
@@ -2193,8 +2193,8 @@
   for (SourceRange range : Ranges) {
     if (!range.isValid())
       continue;
-    hash.AddInteger(range.getBegin().getRawEncoding());
-    hash.AddInteger(range.getEnd().getRawEncoding());
+    hash.Add(range.getBegin());
+    hash.Add(range.getEnd());
   }
 }
 
@@ -2216,8 +2216,8 @@
   for (SourceRange range : Ranges) {
     if (!range.isValid())
       continue;
-    hash.AddInteger(range.getBegin().getRawEncoding());
-    hash.AddInteger(range.getEnd().getRawEncoding());
+    hash.Add(range.getBegin());
+    hash.Add(range.getEnd());
   }
 }